4.
Title: VAN KAMPEN WAVES IN A NONSTATIONARY PLASMA Authors: A.M. Ignatov. Abstract:
5.
Title: THE METHOD OF INTERFERENCE-THRESHOLD RECORDING OF OPTICAL INFORMATION Authors: V.F. Efimkov, I.G. Zubarev, S.I. Mikhailov, V.B. Sobolev. Abstract:
6.
Title: A PREDATOR-PREY MODEL WITH ALLOWANCE FOR MEMORY Authors: Y.A. Kulagin, R.I. Serikov, I.V. Simanovskii, L.A. Shelepin. Abstract: